Automatic air-brake coupler



1,635,782 y 12 1927' M. w. DREIBELBIS AUTOMATIC AIR BRAKE COUPLER Filed Nov. 5, 1926 I wuemfoz Patented July 12, 1927.

UNITED STATES MILTON W. DREIBELBIS, 'OF LEESPOIRT, PENNSYLVANIA.

AUTOMATIC AIR-BRAKE COUPLER.

Application filed November 3, 1926. Serial No. 145,959.

' which coupling of the pneumatic system is to be accomplished.

My object in the present instance is to provide a very simple and yet effective construction for automatically accomplishing such air pipe coupling, and to this end I have provided a simple structure, applicable to the ends'of a'car, both ends being pro vided with a like device, thus avoiding all annoyance such as is caused where the meet ing members of a coupler differ, as for instance where a male and female connection is to be made.

My device consists of a spring .backed,

compressible bumper member carrying a valve actuating attachment, and a valve on the air pipe in line and capable of being. actuated by said attachment to control the The invention is extremely simple in construction and cheap as to cost of installation and upkeep.

The invention is more fully described in the followingspecification.and clearly illus trated in the accompanying drawing in which s V Figure 1 is a side elevational view of my 'coupler, showing two like members just at v meeting position, and partly in cross section. "Figure 2 is a section taken through 2-2 of Fig. 1. V

Figure 3 is a sectional view taken through the line'-3'-3 of Figure 1.

Figure 4 is a detail view of the valve, in enlarged section.

The numeral 1 designates the air pipes on two opposed or meeting cars, and these pipes are provided each with a check valve 2 which valves are opened by depressing their valve stems 3, which latter have springs 4 to return the valve to normal position. The upper edges of these valve stems are slightly. inclined, as shown in Figure 4.

The numeral 5 designates a. bumper plate or head and is formed with a pair of rods 6, which rods are mounted in supports 7, attached to the car in any suitable manner. The rods are surrounded by coil springs 9, which springs are compressed when the heads of opposing cars meet. One of the rods 6, in each'support, is provided with a bar or actuating attachment 10, the'extremity of which liesl within the path, longituthrough which the air pipe passes.

di'nally, of thespring backed valve stem of the check valve.

Eachof the supports 7 is provided with a face plate 12, through which the rods pass, and thisplate also has a central perforation This air plpe, at the'point'approximately where it passes through'the plates 12, is telescopic in form, one portion thereof, 15, being carried by the head plate or bumper, 5. This head plate is provided with a central perforation, forming the air line, and in this perforation I place a relatively soft washer 17, which projects slightly beyond the face of the head member, so that when the two head members come into contact with each other,

these washer members, surrounding the airline, will meet and prevent leakage of air. It s evident that when two cars provided with my air coupler are brought together,

the head members will move back, the telescopic air line will permit the valve actuating attachment carried by the head. to contact with the stem of the check valve and open it, thus forming the air connection. 7

It is evident that, when the separation of the cars takes place, the elongated contacting portion of the actuating attachment will slide along thetop of the check valve stem, and prevent its closing until the end thereof is reached, which will be at the time the separation is desired. v

Having thus fully described my invention, what I claim and desire to secure by Letters Patent is':--

1.- In an automatic air line coupler for ing against said face plates, said bumper head plates being mounted for horizontal movement, a telescopic air line, one portion of which is carried by said perforated plate and is provided with a check valve and the 7 other portion by the head plate, said valve having a-valve stem with a tapered projecting end, a valve actuating barcarried by'one of said rods and so located with relation tothe' check valve as to depress the valve stem by contacting with its tapered end and tapered end, a bar carried by said rods having, 2i inpei'od poi'l'ion adopted 'o engage said tapered endoi the valve stem to open the Ynive npon reni'i'i'ni'd, IDOVQlllGniT o1 snid bumper head plate and being of sniiieient length '0 hoid the valve open during the entire renrn in'd HIOYUH'IOXH' oi the bumper head plate.

In testinnwy whereof I ziiiix my signature.

MILTON \V. DREIBELBIS 

